Home / 5,587.72-8,381.51-1,427.71

Finding the Fourth Proportional to 5,587.72, 8,381.51 and 1,427.71

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Solution

The fourth proportional to 5,587.72, 8,381.51 and 1,427.71 is: 2,141.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.72 : 8,381.51 = 1,427.71 : x
  2. Step 2: Convert to fraction form
    5,587.72/8,381.51 = 1,427.71/x
  3. Step 3: Cross multiply
    5,587.72x = 8,381.51 × 1,427.71
  4. Step 4: Simplify right side
    5,587.72x = 11,966,365.64
  5. Step 5: Solve for x
    x = 11,966,365.64/5,587.72
  6. Step 6: Final answer
    x = 2,141.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.